James jenkinsos-



UNTTnn STaTns PATENT Ottica.

JAMES JNKINSON, OF VILLIAMSBURG, NEV YORK, ASSIGNOR TO HIMSELF AND EMANUEL MANDEL, OF SAME PLACE.

l'EWi-ROVEWENT BN TEMPEFHNG STEEL SPRINGS.

Specification forming part oi" Letters Patent No. 23, BAEL, dated March l, 1859.

To all whom t may concern:

Beit known that l, J AMES JnNxrNsoN, of Villiamsburg, in the county of Kings and State of New York, have invented a new and Improved Method of Tying Coiled Springs, for the Purpose of Hardening and Tempering the Same;- and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making apart ofthis specification, in which- Figure l representsa front elevation of the apparatus which I employ for ceiling and tying the springs. Fig. 2 is a plan or top view of the same, representing the wheel to which the spring is tied and the spring as far as it is coiled in section. Fig. 3 represents the manner in which the spring is arranged after it has been hardened, for the purpose of tempering theysame; and Fig. 4 represents a section ot' a coiled spring tied in the old style.

Similar letters of reference indicate corre spending parts in the several tigures.

This invention consists in arranging the several wires which serve for tying the coil i in sucha manner that one end ofthe same always lies flat against the under side ot' the coil, Vwhile the other end ot' the wire is bent over the consecutive rings of the coil and twisted round the straight end, so that the several rings constituting the coil are tied to the straight ends of the wires, and that by nipcoils, I will proceed to describe it.

A is a wheel, which is attached to a stand, B, and which rotates freely on an arbor, a. The wheel is of hexagonal forni, but it may be made in any other convenient form, and in the center of each side, on its outer edge, pins b are inserted, to whichthe wires c c are tied by one end, The spring C is fed to the wheel A over the conducting-rollers l), and the inner end, d, ofthe spring is tied to the hub of the wheel A by one ofthe wires, c, and, as is usually done with smaller kinds of springs, two of them are fed to the wheel at the same time, one being placed on the top of the other, as clearly represented in Fig. l. lIhe end c I of the wire c which holds the end d of the spring, runs down behind the hub, and it is turned over the hub and over the end of the spring and drawn through one ofthe notches e in the edge of the hub, and it is then wound round the wire c', extending from the arm of the wheel down to the hub. The second wire, c, is drawndown under the first rin g, g, close to the hub, turned over the springs, as represented atf, and twisted round that part of the wire c lying between the ring g and the arm of the wheel in such a manner that this ring is perfectly confined. The next one of the wires, c, is turned over the ring g in the same manner, and so on to the third, fourth, and fifth wires, when the second ring, g, commences, and this is tied in the same manner to the wire o', and so on to the rest oi' the wires, by turning the loose end of the wire over the ring ot' the coil and round that end of the wire which extends from the arm down to the hub, as is clearly represented in Figs. l and 2. The' old method of tying these coils is represented in Fig. 4., where both ends of the wires hh are loose and turned over the several rings as they follow each other in opposite directions. After the coil is finished, the inner end, d, of the same is untied from the hub of the wheel A, and the coil is hardened in the usual manner, and each of the wires c c is now nipped at the under side of the coil, so that the straight ends ofthe wires, which are loosened from the pins b, maybe removed without dit'- iiculty, and if the coil be now placed on a bobbin,tF, as represented in Fig. 3, and after the pieces of wire on the upper side of the coil have been removed, which can be done quite easily after the straight ends of the same have been drawn out, the coil is ready for tempering. Vhen the coil is tied after the old plan, (represented in Fig. 4,) it is necessary to nip the wires at each ring of the coil and on both sides of the same, and by the time the wires are all removed the coil becomes loose and drops 2 salme on the ground, Where it takes up some dust and other impurities, which causes great inconvenience, and at the same time it is not only troublesome to gather up the springs again ready for tempering, but they also get broken very easily during this operation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

` Arranging the Wires c c in suoli a manner that by tying one end of each of the same to one of the arms of the wheel on which the coil is formed, and by extending the ends so tied down to the hub of the wheel, the loose ends of the wire serve to fasten the several rings of the coil7 substantially as described.

J AMES JENKINSON..

Witnesses: Y

W. HAUFF, W. TUsoH. 

